.x-tab-tabmenu-right {
    background: transparent url('images/tab-scroller-menu.gif') no-repeat 0 0;
    width: 18px;
    height: 20px;
    cursor: pointer;
    zoom: 1;
    z-index: 6;
    float: right;
}

.x-tab-tabmenu-over {
    background-position: -18px 0;
}

.x-tab-tabmenu-disabled {
    background-position: 0 0;
    opacity: .5;
    -moz-opacity: .5;
    filter: alpha(opacity=50);
    cursor: default;
}
